Corrosion resistant coating with passive protection and self-healing property based on Fe3O4-MBT nanoparticles
This work synthesized novel Fe3O4 nanoparticles loaded with 2-mercaptobenzothiazole corrosion inhibitors (Fe3O4-MBT NPs), which possessed not only photothermal conversion property but also corrosion inhibition ability. The loading percentage of MBT inhibitors in the Fe3O4-MBT NPs was 9.69 wt.%. The...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2022-09-01
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| Series: | Corrosion Communications |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2667266922000378 |
| _version_ | 1811317136725901312 |
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| author | Jinke Wang Shanghao Wu Lingwei Ma Bing Zhao Haowen Xu Xiaolun Ding Dawei Zhang |
| author_facet | Jinke Wang Shanghao Wu Lingwei Ma Bing Zhao Haowen Xu Xiaolun Ding Dawei Zhang |
| author_sort | Jinke Wang |
| collection | DOAJ |
| description | This work synthesized novel Fe3O4 nanoparticles loaded with 2-mercaptobenzothiazole corrosion inhibitors (Fe3O4-MBT NPs), which possessed not only photothermal conversion property but also corrosion inhibition ability. The loading percentage of MBT inhibitors in the Fe3O4-MBT NPs was 9.69 wt.%. The obtained Fe3O4-MBT NPs were incorporated into a shape memory epoxy coating to achieve passive protection and self-healing property. The passive protection property of intact Fe3O4-MBT/epoxy coating was assessed using electrochemical impedance spectroscopy (EIS) measurement during immersion in 3.5 wt.% NaCl solution. The low-frequency impedance modulus at 0.01 Hz of the composite coating containing 3 wt.% Fe3O4-MBT NPs was approximately 5 times higher than that of the blank epoxy coating after 240 h of immersion, indicating the superior barrier property of the composite coating. As for the self-healing property, the scratch width on the coating surface could narrow from 80 µm to ∼5 µm after near-infrared (NIR) light irradiation for 30 s, which was ascribed to the excellent photothermal conversion property of Fe3O4 NPs. EIS results verified that both the scratch closure triggered by the photothermal conversion of Fe3O4 NP and the release of MBT inhibitors are beneficial for the suppression of corrosion activity within the coating scratch. The Fe3O4-MBT/epoxy coating with outstanding passive protection and self-healing property holds great potential to achieve long-term corrosion protection. |
| first_indexed | 2024-04-13T12:01:47Z |
| format | Article |
| id | doaj.art-86b3cdf53b2743a0bd7e560548b2ab69 |
| institution | Directory Open Access Journal |
| issn | 2667-2669 |
| language | English |
| last_indexed | 2024-04-13T12:01:47Z |
| publishDate | 2022-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Corrosion Communications |
| spelling | doaj.art-86b3cdf53b2743a0bd7e560548b2ab692022-12-22T02:47:46ZengElsevierCorrosion Communications2667-26692022-09-017111Corrosion resistant coating with passive protection and self-healing property based on Fe3O4-MBT nanoparticlesJinke Wang0Shanghao Wu1Lingwei Ma2Bing Zhao3Haowen Xu4Xiaolun Ding5Dawei Zhang6National Materials Corrosion and Protection Data Center, University of Science and Technology Beijing, Beijing 100083, ChinaNational Materials Corrosion and Protection Data Center, University of Science and Technology Beijing, Beijing 100083, ChinaNational Materials Corrosion and Protection Data Center, University of Science and Technology Beijing, Beijing 100083, China; BRI Southeast Asia Network for Corrosion and Protection (MOE), Shunde Graduate School of University of Science and Technology Beijing, Foshan 528399, China; Corresponding author.National Materials Corrosion and Protection Data Center, University of Science and Technology Beijing, Beijing 100083, ChinaNational Materials Corrosion and Protection Data Center, University of Science and Technology Beijing, Beijing 100083, ChinaNational Materials Corrosion and Protection Data Center, University of Science and Technology Beijing, Beijing 100083, ChinaNational Materials Corrosion and Protection Data Center, University of Science and Technology Beijing, Beijing 100083, ChinaThis work synthesized novel Fe3O4 nanoparticles loaded with 2-mercaptobenzothiazole corrosion inhibitors (Fe3O4-MBT NPs), which possessed not only photothermal conversion property but also corrosion inhibition ability. The loading percentage of MBT inhibitors in the Fe3O4-MBT NPs was 9.69 wt.%. The obtained Fe3O4-MBT NPs were incorporated into a shape memory epoxy coating to achieve passive protection and self-healing property. The passive protection property of intact Fe3O4-MBT/epoxy coating was assessed using electrochemical impedance spectroscopy (EIS) measurement during immersion in 3.5 wt.% NaCl solution. The low-frequency impedance modulus at 0.01 Hz of the composite coating containing 3 wt.% Fe3O4-MBT NPs was approximately 5 times higher than that of the blank epoxy coating after 240 h of immersion, indicating the superior barrier property of the composite coating. As for the self-healing property, the scratch width on the coating surface could narrow from 80 µm to ∼5 µm after near-infrared (NIR) light irradiation for 30 s, which was ascribed to the excellent photothermal conversion property of Fe3O4 NPs. EIS results verified that both the scratch closure triggered by the photothermal conversion of Fe3O4 NP and the release of MBT inhibitors are beneficial for the suppression of corrosion activity within the coating scratch. The Fe3O4-MBT/epoxy coating with outstanding passive protection and self-healing property holds great potential to achieve long-term corrosion protection.http://www.sciencedirect.com/science/article/pii/S2667266922000378Fe3O4 nanoparticlesCorrosion inhibitorsPhotothermal conversionSelf-healing propertyCorrosion protectionCoating |
| spellingShingle | Jinke Wang Shanghao Wu Lingwei Ma Bing Zhao Haowen Xu Xiaolun Ding Dawei Zhang Corrosion resistant coating with passive protection and self-healing property based on Fe3O4-MBT nanoparticles Corrosion Communications Fe3O4 nanoparticles Corrosion inhibitors Photothermal conversion Self-healing property Corrosion protection Coating |
| title | Corrosion resistant coating with passive protection and self-healing property based on Fe3O4-MBT nanoparticles |
| title_full | Corrosion resistant coating with passive protection and self-healing property based on Fe3O4-MBT nanoparticles |
| title_fullStr | Corrosion resistant coating with passive protection and self-healing property based on Fe3O4-MBT nanoparticles |
| title_full_unstemmed | Corrosion resistant coating with passive protection and self-healing property based on Fe3O4-MBT nanoparticles |
| title_short | Corrosion resistant coating with passive protection and self-healing property based on Fe3O4-MBT nanoparticles |
| title_sort | corrosion resistant coating with passive protection and self healing property based on fe3o4 mbt nanoparticles |
| topic | Fe3O4 nanoparticles Corrosion inhibitors Photothermal conversion Self-healing property Corrosion protection Coating |
| url | http://www.sciencedirect.com/science/article/pii/S2667266922000378 |
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